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Electrophysiological and morphological characteristics of the visceral nociceptive neurons in cortex SII area of cats

Chen Jinghong, Liu Suzhen, Teng Guoxi

Institute of Pharmacology and Toxinology,Academy of Military Medical Sciences.Beijing 100850；China

Abstract

Electrophysiological and morphological properties of the visceral nociceptive neurons (VNNs) in the secondary somatosensory cortex (SII) area of 16 cats were investigated with intracellular recording and labeling method. It was found that excitatory VNNs were pyramidal neurons predominantly, whereas more inhibitory VNNs were stellate neurons.

Key words: Second somatosensory cortex;Visceral nociceptive neuron;Intracellular recording;Intracellular labeling;Visceral pain

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Citing This Article：

Chen Jinghong, Liu Suzhen, Teng Guoxi. Electrophysiological and morphological characteristics of the visceral nociceptive neurons in cortex SII area of cats. Acta Physiol Sin 1999; 51 (4): (in Chinese with English abstract).